import argparse
import shlex
from byzerllm.lang import lang,locales

class StoreNestedDict(argparse.Action):
    def __call__(self, parser, namespace, values, option_string=None):
        d = {}
        for kv in values:
            try:
                for clean_kv in shlex.split(kv):
                    key, value =clean_kv.split("=", 1)
                    d[key]=value
            except ValueError:
                raise argparse.ArgumentError(self, f"Invalid argument format: {kv}")
        setattr(namespace, self.dest, d)  

def get_command_args():
    parser = argparse.ArgumentParser(description=locales["desc"][lang])
    subparsers = parser.add_subparsers(dest='command')

    # Deploy 子命令
    deploy_cmd = subparsers.add_parser('deploy', help=locales["help_deploy"][lang])
    deploy_cmd.add_argument('--ray_address', default="auto", help=locales["help_ray_address"][lang])
    deploy_cmd.add_argument('--num_workers', type=int, default=1, help=locales["help_num_workers"][lang])
    deploy_cmd.add_argument('--gpus_per_worker', type=float, default=0, help=locales["help_gpus_per_worker"][lang])
    deploy_cmd.add_argument('--cpus_per_worker', type=float, default=0.01, help=locales["help_cpus_per_worker"][lang])
    deploy_cmd.add_argument('--model_path', default="",required=False, help=locales["help_model_path"][lang])
    deploy_cmd.add_argument('--pretrained_model_type', default="custom/llama2", help=locales["help_pretrained_model_type"][lang])
    deploy_cmd.add_argument('--model', required=True, help=locales["help_udf_name"][lang])    
    deploy_cmd.add_argument('--infer_backend', default="vllm", help=locales["help_infer_backend"][lang])
    deploy_cmd.add_argument('--infer_params', nargs='+', action=StoreNestedDict, help=locales["help_infer_params"][lang])
    deploy_cmd.add_argument("--file", default=None, required=False, help="")
    
    # Undeploy 子命令
    deploy_cmd = subparsers.add_parser('undeploy', help=locales["help_deploy"][lang])
    deploy_cmd.add_argument('--ray_address', default="auto", help=locales["help_ray_address"][lang])
    deploy_cmd.add_argument('--model', required=True, help=locales["help_udf_name"][lang])    
    deploy_cmd.add_argument("--file", default=None, required=False, help="")
    deploy_cmd.add_argument("--force",action='store_true', help="")

    # Query 子命令
    query_cmd = subparsers.add_parser('query', help=locales["help_query"][lang])
    query_cmd.add_argument('--ray_address', default="auto", help=locales["help_ray_address"][lang])
    query_cmd.add_argument('--model', required=True, help=locales["help_query_model"][lang])
    query_cmd.add_argument('--query', required=True, help=locales["help_query_text"][lang])
    query_cmd.add_argument('--template', default="auto", help=locales["help_template"][lang])
    query_cmd.add_argument("--file", default=None, required=False, help="")
    query_cmd.add_argument("--output_file", default="", help="")
    
    # Stat Command
    status_cmd = subparsers.add_parser('stat', help=locales["help_query"][lang])
    status_cmd.add_argument('--ray_address', default="auto", help=locales["help_ray_address"][lang])
    status_cmd.add_argument('--model', required=True, help=locales["help_query_model"][lang])        
    status_cmd.add_argument("--file", default=None, required=False, help="")    

    # Storage 子命令
    storage_cmd = subparsers.add_parser('storage', help='Manage Byzer Storage')    
    storage_cmd_subparsers = storage_cmd.add_subparsers(dest='storage_command')
    
    # install 子命令
    storage_install_cmd = storage_cmd_subparsers.add_parser('install', help='Install Byzer Storage')
    storage_install_cmd.add_argument("--file", default=None, required=False, help="")
    storage_install_cmd.add_argument('--ray_address', default="auto", help=locales["help_ray_address"][lang])
    storage_install_cmd.add_argument("--version", default="0.1.11", required=False, help="")
    storage_install_cmd.add_argument('--cluster', default="byzerai_store", help="")
    storage_install_cmd.add_argument('--base_dir', default="", help="")

    storage_collection_cmd = storage_cmd_subparsers.add_parser('collection', help='')
    storage_collection_cmd.add_argument("--file", default=None, required=False, help="")
    storage_collection_cmd.add_argument('--ray_address', default="auto", help=locales["help_ray_address"][lang])
    storage_collection_cmd.add_argument("--version", default="0.1.11", required=False, help="")
    storage_collection_cmd.add_argument('--cluster', default="byzerai_store", help="")
    storage_collection_cmd.add_argument('--base_dir', default="", help="")
    storage_collection_cmd.add_argument('--name', default="", help="")
    storage_collection_cmd.add_argument('--description', default="", help="")
    
    # start 子命令
    storage_start_command = storage_cmd_subparsers.add_parser('start', help='Start Byzer Storage')
    storage_start_command.add_argument("--file", default=None, required=False, help="")
    storage_start_command.add_argument("--version", default="0.1.11", required=False, help="")
    storage_start_command.add_argument('--ray_address', default="auto", help=locales["help_ray_address"][lang])
    storage_start_command.add_argument('--cluster', default="byzerai_store", help="")
    storage_start_command.add_argument('--base_dir', default="", help="")


    # stop 子命令
    storage_stop_command = storage_cmd_subparsers.add_parser('stop', help='Stop Byzer Storage')
    storage_stop_command.add_argument("--file", default=None, required=False, help="")
    storage_stop_command.add_argument("--version", default="0.1.11", required=False, help="")
    storage_stop_command.add_argument('--ray_address', default="auto", help=locales["help_ray_address"][lang])
    storage_stop_command.add_argument('--cluster', default="byzerai_store", help="")
    storage_stop_command.add_argument('--base_dir', default="", help="")
    
    # export 子命令
    storage_export_command = storage_cmd_subparsers.add_parser('export', help='Export Byzer Storage Information')    
    storage_export_command.add_argument("--file", default=None, required=False, help="")
    storage_export_command.add_argument("--version", default="0.1.11", required=False, help="")
    storage_export_command.add_argument('--ray_address', default="auto", help=locales["help_ray_address"][lang])
    storage_export_command.add_argument('--cluster', default="byzerai_store", help="")
    storage_export_command.add_argument('--base_dir', default="", help="")
    
    # Serve 子命令
    serve_cmd = subparsers.add_parser('serve', help='Serve deployed models with OpenAI compatible APIs')    
    serve_cmd.add_argument("--file", default="", help="")        
    serve_cmd.add_argument("--ray_address", default="auto", help="")    
    serve_cmd.add_argument("--host", default="", help="")
    serve_cmd.add_argument("--port", type=int, default=8000, help="")
    serve_cmd.add_argument("--uvicorn_log_level", default="info", help="")
    serve_cmd.add_argument("--allow_credentials", action='store_true', help="")
    serve_cmd.add_argument("--allowed_origins", default=["*"], help="")
    serve_cmd.add_argument("--allowed_methods", default=["*"], help="")
    serve_cmd.add_argument("--allowed_headers", default=["*"], help="")
    serve_cmd.add_argument("--api_key", default="", help="")
    serve_cmd.add_argument("--served_model_name", default="", help="")
    serve_cmd.add_argument("--prompt_template", default="", help="")
    serve_cmd.add_argument("--ssl_keyfile", default="", help="")
    serve_cmd.add_argument("--ssl_certfile", default="", help="")
    serve_cmd.add_argument("--response_role", default="assistant", help="")
    serve_cmd.add_argument('--template', default="auto", help=locales["help_template"][lang])

    return parser.parse_args()